Anomalous Forms Research Articles

NGC 5189 and the CRUX X-ray Source

OF the objects in the southern hemisphere which are generally classified as planetary nebulae1 undoubtedly the two with the most strikingly anomalous forms are NGC 6302 (refs. 2, 3) and NGC 5189 (refs. 4, 5). Attention has been drawn by Minkowski and Johnson to the fact that NGC 6302 lies close to the position of the cosmic X-ray source SCO XR-2. It is interesting therefore that NGC 5189 (13.5h–65°.7) lies in the direction of the X-ray source CRUX recently discovered by Harries et al.6 The uncertainty in the position of this source is considerable (especially in declination), two measures giving 13.7h–62° and 13.5h–66°. Thus clearly no positive identification can yet be claimed. Nevertheless, in view of the small number of known X-ray sources it seems quite remarkable to find even approximate agreement in positions between two of them and two such highly peculiar objects as NGC 5189 and NGC 6302 unless there is indeed some physical connexion.

Plant color effects of certain anomalous forms of theR r allele in maize

The genetically changes forms ofRrarising regularly in maize plants heterozygous for the stippled, light stippled, and marbled alleles, and previously shown to influence aleurone color differentially, were found to affect coleoptile and seedling leaf sheath color also. Failure to demonstrate corresponding differential effects on root pigmentation possibly was due to inadequacy of the testing procedure. Two of the modified forms ofRrwere observed to reduce glume and anther color also. The experimental results imply that theR locus as a region is involved in the phenomenon.

Morphological Changes in Peach Seedlings Following After-Ripening Treatments of the Seeds

1. More than 10,000 peach seeds, involving nineteen varieties and twelve sources, were after-ripened at 34⚬-36⚬ F. for weekly intervals ranging from 1 to 12 weeks, and then germinated and grown to seedling size at 68⚬ F. 2. Some of the plants which developed were dwarfed, with anomalous leaves, resembling plants grown from excised embryos of non-after-ripened seeds. Such anomalous plants were most frequent among samplings which were after-ripened for the shortest period of time; they decreased progressively as the after-ripening period lengthened, until all seedlings were "normal." 3. The frequency of anomalous plants was higher from non-germinating, excised seeds than from germinating, non-excised seeds following the same length of after-ripening. 4. The frequency of anomalous plants varied with the variety. 5. Anomalous forms are not the result of photoperiod alone, inasmuch as both normal and dwarfed seedlings developed from seeds planted the same day. 6. Of two lots of pits from California, some were germinating and some not, when received. Of the germinating seeds, all developed into normal seedlings; only a few of the non-germinating ones developed, and these were all anomalous. 7. The dwarfed and anomalous growth of seedlings only rarely occurred in parts other than the epicotyledonary axis and its appendages. New shoots induced from axillary buds were free from dwarfed and anomalous characters.

SPIRAL AND OTHER ANOMALOUS FORMS OF SEGMENTATION WITH AN ACCOUNT OF THREE VENTRAL SPIRALS IN ONE BROOD OF HADENA DISSIMILIS KN.

Transactions of the Royal Entomological Society of LondonVolume 82, Issue 1 p. 165-172 SPIRAL AND OTHER ANOMALOUS FORMS OF SEGMENTATION WITH AN ACCOUNT OF THREE VENTRAL SPIRALS IN ONE BROOD OF HADENA DISSIMILIS KN. E. A. Cockayne D.M., F.R.C.P., E. A. Cockayne D.M., F.R.C.P.Search for more papers by this author E. A. Cockayne D.M., F.R.C.P., E. A. Cockayne D.M., F.R.C.P.Search for more papers by this author First published: June 1934 https://doi.org/10.1111/j.1365-2311.1934.tb00032.xCitations: 2AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume82, Issue1June 1934Pages 165-172 RelatedInformation

ANOMALOUS FORMS IN WRITING NUMBERS

School Science and MathematicsVolume 16, Issue 3 p. 246-247 ANOMALOUS FORMS IN WRITING NUMBERS Florian Cajori, Florian CajoriSearch for more papers by this author Florian Cajori, Florian CajoriSearch for more papers by this author First published: March 1916 https://doi.org/10.1111/j.1949-8594.1916.tb01590.xRead the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume16, Issue3March 1916Pages 246-247 RelatedInformation

Societies and Academies

PARIS. Academy of Sciences, August 6.—M. H. Poincaté in the chair.—The iodomercurates of sodium and barium: A. Duboin. The author has isolated crystals of the double iodide of sodium and mercury, having the composition 2 NaI, HgI2, 4 H2O, and of the corresponding barium compound, BaI2, HgI2, 5 H2O. The latter crystals were remarkable for their length, approaching 2 cm.—The borostannates of the alkaline earths: the reproduction of nordenskiöldine: L. Ouvrard. Calcium borostannate, possessing crystallographic characters identical with those of the natural mineral, was obtained by heating precipitated calcium borate with tin dioxide to a white heat in a slow current of hydrogen chloride.—The influence of the temperature of dehydration of alabaster on the setting of the plaster obtained: E. Leduc and Maurice Pellet.—The causes of the appearance of so-called anomalous forms in plants: P. Vuillemin.—Researches on the gaseous exchanges of a green plant developed in the light in the absence of carbonic acid, in a soil to which arnides have been added: Jules Lefévre. Under the above conditions it has been found that a green plant can develop, increasing its dry weight three times, without any oxygen being given off.— The action of the X-rays on the ovary of the dog: M. Roulier. Contrary to the results obtained with rabbits, atrophy of the ovary is very difficult to obtain, in spite of the production of serious lesions of the skin.—Experimental nagana. The variations in the number of the trypanosomes in the blood of the dog. The intravascular trypanolysis and trypanolytic power of the serum: A. Rodet and G. Vallet.

Lightning-Flashes

THE brief note (NATURE, vol. xxxv. p. 85) giving the results of the observations of Herr Leyst, of the Pawlowsk Observatory, on the anomalous forms of lightning-flashes, suggests several considerations relating to this class of phenomena.

The Diagnosis of Insanity

The Diagnosis of Mania — Melancholia — Monomania — Moral Insanity—General Paralysis—Feigned Insanity —Concealed InsanityMania is the term applied to that large class of mental disorders in which the functions are in a state of excitement, and their mutual dependence and proportion disturbed. It embraces forms of disease so widely apart from each other, that in treating practically of its diagnosis it will be essential to make some classification. For practical purposes it will be sufficient to distinguish its forms into those of acute mania, comprising cases which present recent and active symptoms; chronic mania, in which acute symptoms have given way to others of a more tranquil and permanent kind; and incomplete mania, corresponding to the “mania raisonante” of the French, and embracing those anomalous and undeveloped forms of mental disorder in which defective power of volition and morbid propensities are prominent symptoms.

XXXIV. Conjectures on the Analogy observed in the Formation of some of the Tenses of the Greek Verb

The following conjectures concerning the Analogy observed in the formation of some of the Tenses of the Greek Verb seem worthy of farther inquiry; for, if well founded, they may be useful towards establishing juster rules for the formation of the Tenses in some instances; and, particularly, they will account for certain forms of the Verb in Homer and Hesiod, which, being apparent violations of the usual analogy, have perplexed the grammarians, and reduced them to the necessity of assuming imaginary new Presents, without authority, and for no other reason, but to account for such anomalous forms.